Federal agents will reportedly visit targeted companies within the week to serve notice of required documents including Employment Eligibility Verification forms known as ‘I-9 forms’ used to verify the identity of employees and their eligibility to work in the U.S. WSJ reports the government should make news of the audits public in the next few days.

While ICE is not expected to name the companies undergoing so-called ‘I-9 Audits,’ the WSJ reports industries that “rely heavily on low-skilled workers” and thus are “most vulnerable to enforcement actions” include agriculture, food services, and hospitality. In 2010, ICE audits included a popular burrito chain, an apple grower, and clothing makers.

In a related story, House Republicans are pushing for mandatory use of E-Verify – a free, web-based, government-run electronic verification system that allows employers to verify the employment eligibility of new hires by checking information on I-9 forms with DHS, State Department, and Social Security Administration (SSA) databases, the WSJ reports.

E-Verify, which began as a pilot program in 1997, is used either voluntarily or as a requirement for doing business with the U.S. government by approximately 11 percent of the nation’s 7.7 million employers, according to the WSJ. Federal contractors, all employers in Arizona, Mississippi, and South Carolina, and government agencies and public contractors in about a dozen other states must use E-Verify.